- (n.) An underground gallery excavated to intercept and destroy the mining of an enemy.
- (v.t.) To oppose by means of a countermine; to intercept with a countermine.
- (v.i.) To make a countermine or counterplot; to plot secretly.
- (v.t.) To frustrate or counteract by secret measures.
- (n.) A stratagem or plot by which another sratagem or project is defeated.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). countermine. Retrieved September 22, 2026, from http://smartdefine.org/countermine/definitions/1992250 |
| Chicago | Webster's. 2011. "countermine" http://smartdefine.org/countermine/definitions/1992250 (accessed September 22, 2026). |
| Harvard | Webster's 2011, countermine, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/countermine/definitions/1992250>. |
| MLA | Webster's. "countermine" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/countermine/definitions/1992250> |